Cash from financing activities related to the change in short-term borrowings due to the securitization transactions

No definition available.

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- Definition

Securitization transaction fees

+ References

No definition available.

+ Details

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- Definition

Trade Receivable Agreement Expiration Date

+ References

No definition available.

+ Details

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- Definition

Trade receivables transferred, net

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The face amount of accounts receivable that will be sold to other entities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

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- Definition

Carrying amount of liabilities associated with financial assets accounted for as secured borrowings recognized in the transferor's statement of financial position at the end of each period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=64858031&loc=SL6224234-111729

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Transfers Of Financial Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Accounts receivable securitization facility borrowings	$ 235.0		$ 235.0		$ 246.0
Net receivables transferred	235.0		235.0		$ 246.0
Cash From Financing Activities Related To The Change In Short-Term Borrowings Due To The Securitization Transactions			(11.0)	$ (177.1)
Securitization Transaction Fees	0.4	$ 0.5	$ 1.6	$ 1.9
Columbia Gas Of Ohio Receivables Corporation
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Trade Receivable Agreement Expiration Date			Oct. 13, 2017
Net receivables transferred	75.0		$ 75.0
NIPSCO Accounts Receivable Corporation
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Trade Receivable Agreement Expiration Date			Aug. 23, 2017
Net receivables transferred	150.0		$ 150.0
Columbia Gas Of Pennsylvania Receivables Corporation
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Trade Receivable Agreement Expiration Date			Mar. 08, 2017
Net receivables transferred	10.0		$ 10.0
Maximum \| Accounts Receivable Program
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Accounts receivable securitization facility borrowings	515.0		515.0
Maximum \| Columbia Gas Of Ohio Receivables Corporation
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Trade receivables, seasonal program maximum	240.0		240.0
Maximum \| NIPSCO Accounts Receivable Corporation
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Trade receivables, seasonal program maximum	200.0		200.0
Maximum \| Columbia Gas Of Pennsylvania Receivables Corporation
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Trade receivables, seasonal program maximum	$ 75.0		$ 75.0